package com.wenx.test;

import java.util.HashMap;
import java.util.Map;

public class MapDemo {
    public static void main(String[] args) {
        Map<String,String> map = new HashMap<String,String>();
        map.put("abc","a");
        map.put("abc","b");
        map.put("abc","c");
        //map.remove("abc");
        System.out.println("map = " + map);
    }
}
